September 2013 - rules-users - Jboss List Archives

by stelomax

I am having an issue with a very (VERY) simple rule. This is being called from a rule flow. There are 2 "Testval" facts, both have an "xval" of 300. When the flow is executed i get the following output Total xval: 0.0 300 Total xval: 0.0 300 This shows me a few things 1) The rule is firing 2) My facts are populated correctly with values However the Sum is not working and always has a result of 0.0. ------------------------------------------------------------------------------------ dialect "java" ruleflow-group "TestSum" when Testval($xval2:xval) $total:Number() from accumulate( Testval($xval:xval), sum($xval) ) then System.out.println("Total xval: " + $total); System.out.println($xval2); ----------------------------------- I simplified the rule to see if i was loosing my mind. With the below rule the sum works correctly (as it is summing the static value (1). And i get the following output: Total xval: 2.0 ------------------------------------------------------------------------------------ dialect "java" ruleflow-group "TestSum" when $total:Number() from accumulate( Testval($xval:xval), sum(1) ) then System.out.println("Total xval: " + $total); ----------------------------------- I have been racking my brain for a full day now..any pointers would be great! Thanks gurus Steve -- View this message in context: http://drools.46999.n3.nabble.com/Issue-with-simple-accumulate-sum-rule-t... Sent from the Drools: User forum mailing list archive at Nabble.com.

11 years, 3 months

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How to get all rules filed, drools camel server

by srikanthmalli

Hi, Could you please suggest me a way to get the list of rules fired (rule name and metadata) from drools camel server? I am thinking of doing using List SetGlobal variable and use customAgendaListener to populate the list with rule metadata then do the getGlobal on client side. If this is the right way to do it, could you please let me know how to define/set global list? Thanks, -Sri -- View this message in context: http://drools.46999.n3.nabble.com/How-to-get-all-rules-filed-drools-camel... Sent from the Drools: User forum mailing list archive at Nabble.com.

11 years, 3 months

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Re: [rules-users] Drools 5.5 : Problems with big rules file (~1.5Meg)

by Nicolas Héron

Hi, In your rule, in the then part do you create java objects ? THe best thing would be to have a test case that reproduce this so we can help to find out. You should add some listeners to see what is happening, maybe some rules do an infinite loops or stuff like this ? You have to find out which rule, set of rules do your effect. I do not think it comes from drools. I did project with 200k rules, it is slow to build the package but once this is done, the rest works perfectly. Have you tried to cut your drl file in smaller files ? Cheers Nicolas 2013/9/16 peter.kutzner [via Drools] < ml-node+s46999n4025981h44(a)n3.nabble.com> > Hi Nicolas > > Thx for your quick answer. > > Ok, i forgot some informations: > Using : Java6.0.45 X64 (same problems using Java 7 X64) > > No, i don't use listeners. > I tried with up to 10Gig without success. > > My (reduced) workflow is : > > 1) <code> > kbuilder = KnowledgeBuilderFactory.newKnowledgeBuilder(); > kbuilder.add(ResourceFactory.newClassPathResource(RULES_PATH, getClass()), > ResourceType.DRL); > kbase = KnowledgeBaseFactory.newKnowledgeBase(); > kbase.addKnowledgePackages(kbuilder.getKnowledgePackages()); > </code> > 2) <code> > StatefulKnowledgeSession ruleSession = > kbase.newStatefulKnowledgeSession(); > </code> so far so good > 3) insert two supporter objects in session > 4) add two more worker objects in session > 5) fire all rules > 6) read and retract all expected objects > 7) dispose session > > Processing Steps 2)-7) (in a loop with different worker objects, to > produce load, so there is always only > one session active) work fine for a view times (3-9) then the mentioned > exception occurs. > I also tried it with 10gig for the jvm but in either test the memoryload > does not exceed 3gig. > > With a reduced rules file size (to < 500k; removed some rules, to test > this) i can handle 300000(!) > loops without any exceptions. > > Hope this infos will help. > > Regards > Peter > > ------------------------------ > If you reply to this email, your message will be added to the discussion > below: > > http://drools.46999.n3.nabble.com/Drools-5-5-Problems-with-big-rules-file... > To start a new topic under Drools: User forum, email > ml-node+s46999n47000h33(a)n3.nabble.com > To unsubscribe from Drools, click here<http://drools.46999.n3.nabble.com/template/NamlServlet.jtp?macro=unsubscr...> > . > NAML<http://drools.46999.n3.nabble.com/template/NamlServlet.jtp?macro=macro_vi...> > ----- Nicolas Héron -- View this message in context: http://drools.46999.n3.nabble.com/Drools-5-5-Problems-with-big-rules-file... Sent from the Drools: User forum mailing list archive at Nabble.com.

11 years, 3 months

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Re: [rules-users] Drools 5.5 : Problems with big rules file (~1.5Meg)

by Nicolas Héron

Hi, Are you using listeners ? if yes you should unregister them from the working memory and apply the dispose method to be sure all memory is ..disposed ! Your file may be big but as binary, you package may not be so big and it depends also of how many objects you inserted in the working memory (StatefullKnowledgeSessions). Also, I guess your are using jdk 64 bits ? Then you can use more memory then just 1.5 GB. Your error message is strange. Does it work if you keep all rules but reduce the number of // sessions ? You should give us more info. Cheers Nicolas 2013/9/16 peter.kutzner [via Drools] < ml-node+s46999n4025974h27(a)n3.nabble.com> > Hi community > > I have actually some problems to work with my rules file (.drl). > It is about 1.5Meg (~2500 rules) > > After creating multiple sessions (3 to 9; StatefulKnowledgeSessions) i get > an exception. > > Usually '... java.lang.RuntimeException: cannot invoke method: update ...' > or directly and '....evaluate(Unknown Source) ...) is thrown. > > After reducing the rules file size to less than 500k it works without any > exceptions. > > Using: > Drools 5.5 > Win7 X64 / 16G Ram > > Does anyone have similar problems ? > Are there any known memory problems within Drools 5.5 ? > Or is my rules file unusually big ? > > T.i.a. > Peter > > ------------------------------ > If you reply to this email, your message will be added to the discussion > below: > > http://drools.46999.n3.nabble.com/Drools-5-5-Problems-with-big-rules-file... > To start a new topic under Drools: User forum, email > ml-node+s46999n47000h33(a)n3.nabble.com > To unsubscribe from Drools, click here<http://drools.46999.n3.nabble.com/template/NamlServlet.jtp?macro=unsubscr...> > . > NAML<http://drools.46999.n3.nabble.com/template/NamlServlet.jtp?macro=macro_vi...> > ----- Nicolas Héron -- View this message in context: http://drools.46999.n3.nabble.com/Drools-5-5-Problems-with-big-rules-file... Sent from the Drools: User forum mailing list archive at Nabble.com.

11 years, 3 months

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Exception in thread "main" org.drools.ProviderInitializationException

by poonam.ligade＠wipro.com

Hi, I have included following jars: drools-api-5.0.1.BRMS drools-compiler-5.1.1 drools-api-5.1.1 drools-core-5.1.1 I am getting below error: Exception in thread "main" org.drools.ProviderInitializationException: Provider org.drools.builder.impl.KnowledgeBuilderProviderImpl could not be set. at org.drools.builder.KnowledgeBuilderFactory.loadProvider(KnowledgeBuilderFactory.java:111) at org.drools.builder.KnowledgeBuilderFactory.getKnowledgeBuilderProvider(KnowledgeBuilderFactory.java:101) at org.drools.builder.KnowledgeBuilderFactory.newKnowledgeBuilder(KnowledgeBuilderFactory.java:29) at com.comp.drools.SimpleRule.createKnowledgeBase(SimpleRule.java:84) at com.comp.drools.SimpleRule.main(SimpleRule.java:32) Caused by: java.lang.ClassNotFoundException: org.drools.builder.impl.KnowledgeBuilderProviderImpl at java.net.URLClassLoader$1.run(Unknown Source) at java.net.URLClassLoader$1.run(Unknown Source) at java.security.AccessController.doPrivileged(Native Method) at java.net.URLClassLoader.findClass(Unknown Source) at java.lang.ClassLoader.loadClass(Unknown Source) at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source) at java.lang.ClassLoader.loadClass(Unknown Source) at java.lang.Class.forName0(Native Method) at java.lang.Class.forName(Unknown Source) at org.drools.builder.KnowledgeBuilderFactory.loadProvider(KnowledgeBuilderFactory.java:108) ... 4 more I have configured eclipse JBPM plugin using java 7 and apache tomcat 7 Please help me finding solution ASAP. Thanks, Poonam. Please do not print this email unless it is absolutely necessary. The information contained in this electronic message and any attachments to this message are intended for the exclusive use of the addressee(s) and may contain proprietary, confidential or privileged information. If you are not the intended recipient, you should not disseminate, distribute or copy this e-mail. Please notify the sender immediately and destroy all copies of this message and any attachments. WARNING: Computer viruses can be transmitted via email. The recipient should check this email and any attachments for the presence of viruses. The company accepts no liability for any damage caused by any virus transmitted by this email. www.wipro.com

11 years, 3 months

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help

by poonam.ligade＠wipro.com

Hi, I want to post a query. Could you please let me know the process. I am getting error As 'You are not allowed to post on this link'. Thanks, Poonam Please do not print this email unless it is absolutely necessary. The information contained in this electronic message and any attachments to this message are intended for the exclusive use of the addressee(s) and may contain proprietary, confidential or privileged information. If you are not the intended recipient, you should not disseminate, distribute or copy this e-mail. Please notify the sender immediately and destroy all copies of this message and any attachments. WARNING: Computer viruses can be transmitted via email. The recipient should check this email and any attachments for the presence of viruses. The company accepts no liability for any damage caused by any virus transmitted by this email. www.wipro.com

11 years, 3 months

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Need help is escalation event

by Zahid Ahmed

Hi, I want to use Escalation intermediate event in JBPM5.4. For this I placed an "escalation intermediate event" as a boundary event of an human task. Escalation event has an attribute of expression. I need to know what shall I write to escalate this task to some other user if its not being processed by the current owner.

11 years, 3 months

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Guvnor5.5 : Rest Api Package Based Authentication

by Zahid Ahmed

Hi, I have a centralized Guvnor5.5 environment where multiple applications access the Guvnor through rest api for their respective assets. Each application is assigned a change-set that points to the Package containing assets for that application only. In each change-set the authentication provided is "basic-authentication". Problem Case: If the application developer knows the names of other packages he can point the application to run processes of other applications. This causes security issue for us. Applications should access assets assigned to them in their change-set only. I need to setup user and permissions for access through REST interface on the basis of packages. Applications accessing Guvnor should be allowed only to access their respective package/assets/categories only. Thanks and Best Regards, Zahid Ahmed

11 years, 3 months

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Firing Rule with in a process definition

by Zahid Ahmed

Hi, I need to know how can I fire a rule within a process definition. I want this to control the flow of my Business Process. Thanks and Best Regards, Zahid Ahmed

11 years, 3 months

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Can calendars be defined within .drl ?

by Alexander Wolf

Hey, I use a lot of quartz calendars in my rules like this: rule "my rule" calendars "myCalendar" when But defining them in java is quite verbose. Also I often use the same calendar for only one rule. I believe the calendar is part of the logic and therefore don't like to initialize it elsewhere but with the logic code in the rule. DailyCalendar myCalendar = new DailyCalendar( 7, 0, 0, 0, 8, 0, 0, 0 ); myCalendar.setInvertTimeRange( true ); ksession.getCalendars().set( "myCalendar", QuartzHelper.quartzCalendarAdapter( myCalendar ) ); I would rather define calendars directly in the rule files or even exactly where I use them, e.g. rule "my super rule" calendars DailyCalendar( 7, 0, 0, 0, 8, 0, 0, 0, true ); when or defining them in the rule file like this: (example) declare "myCalendar" @role(calendar) @type( daily ) @from (7,0,0) @until (8, 0, 0) @invert(true) end and the use them as ever. I couldnt find anything like this in the documentation, but would not be surprised if it is actually already possible somehow. If not I would like to suggest this as a new feature ;) (I think I'd prefer the second example with declare) - Alex

11 years, 3 months

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rules-users September 2013